The table corresponds to the default eclipse_language settings.
Using other language dialects typically changes some of the assignments
on a module-local basis (e.g. for the iso dialect, the meaning of
single and double quotes is reversed).

It is not recommended to change the class of the special characters,
since in some cases it might make it impossible to correctly parse
Prolog terms.

Note: the default class of the back-quote character ` was changed from
symbol to list_quote in ECLiPSe 7.0.

Modes and Determinism

set_chtab(+, +) is det

Modules

This predicate is sensitive to its module context (tool predicate, see @/2).